Question

what is the role of glycolipids and glycoproteins in the plasma membrane? a transport of molecules through the membrane b stabilize the phospholipid bilayer c cell identification d cell movement

Explanation:

• Option A: Transport of molecules through the membrane is mainly done by transport proteins (like channel or carrier proteins), not glycolipids/glycoproteins.
• Option B: Cholesterol is more involved in stabilizing the phospholipid bilayer, not glycolipids/glycoproteins.
• Option C: Glycolipids and glycoproteins on the plasma membrane have carbohydrate chains that act as "cell markers" for cell identification (e.g., in immune recognition, tissue - specific recognition), so this is their role.
• Option D: Cell movement is related to structures like cytoskeleton or motor proteins, not glycolipids/glycoproteins.

Answer:

C. Cell identification